TREA

using tubes in the switching stages

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Industry

  • CPC
  • H04Q3/525
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Parent Industries

HELECTRICITY H04Electric communication H04QSELECTING H04Q3/00Selecting arrangements

Current Industry

H04Q3/525using tubes in the switching stages
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    3065458
    • Patent number 3,065,458
    • Issue date Nov 20, 1962
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3001029
    • Patent number 3,001,029
    • Issue date Sep 19, 1961
    • A45 - HAND OR TRAVELLING ARTICLES
  • Information Patent Grant

    2981802
    • Patent number 2,981,802
    • Issue date Apr 25, 1961
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2976367
    • Patent number 2,976,367
    • Issue date Mar 21, 1961
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2960575
    • Patent number 2,960,575
    • Issue date Nov 15, 1960
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2944114
    • Patent number 2,944,114
    • Issue date Jul 5, 1960
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2939112
    • Patent number 2,939,112
    • Issue date May 31, 1960
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2936402
    • Patent number 2,936,402
    • Issue date May 10, 1960
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2925473
    • Patent number 2,925,473
    • Issue date Feb 16, 1960
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2919309
    • Patent number 2,919,309
    • Issue date Dec 29, 1959
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2914747
    • Patent number 2,914,747
    • Issue date Nov 24, 1959
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2911475
    • Patent number 2,911,475
    • Issue date Nov 3, 1959
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2905765
    • Patent number 2,905,765
    • Issue date Sep 22, 1959
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2898406
    • Patent number 2,898,406
    • Issue date Aug 4, 1959
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2883467
    • Patent number 2,883,467
    • Issue date Apr 21, 1959
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2882342
    • Patent number 2,882,342
    • Issue date Apr 14, 1959
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2872527
    • Patent number 2,872,527
    • Issue date Feb 3, 1959
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2870261
    • Patent number 2,870,261
    • Issue date Jan 20, 1959
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2859282
    • Patent number 2,859,282
    • Issue date Nov 4, 1958
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2859284
    • Patent number 2,859,284
    • Issue date Nov 4, 1958
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2859283
    • Patent number 2,859,283
    • Issue date Nov 4, 1958
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2857466
    • Patent number 2,857,466
    • Issue date Oct 21, 1958
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2846511
    • Patent number 2,846,511
    • Issue date Aug 5, 1958
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2843674
    • Patent number 2,843,674
    • Issue date Jul 15, 1958
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2843782
    • Patent number 2,843,782
    • Issue date Jul 15, 1958
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2826715
    • Patent number 2,826,715
    • Issue date Mar 11, 1958
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    2812384
    • Patent number 2,812,384
    • Issue date Nov 5, 1957
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2801369
    • Patent number 2,801,369
    • Issue date Jul 30, 1957
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2801284
    • Patent number 2,801,284
    • Issue date Jul 30, 1957
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2790030
    • Patent number 2,790,030
    • Issue date Apr 23, 1957
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE